Finding the Fourth Proportional to 411,759.48, 616,437.30 and 253,513.08
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Solution
The fourth proportional to 411,759.48, 616,437.30 and 253,513.08 is: 379,529.62
Step by Step Solution
- Step 1: Write the proportion equation
411,759.48 : 616,437.30 = 253,513.08 : x - Step 2: Convert to fraction form
411,759.48/616,437.30 = 253,513.08/x - Step 3: Cross multiply
411,759.48x = 616,437.30 × 253,513.08 - Step 4: Simplify right side
411,759.48x = 156,274,918,549.88 - Step 5: Solve for x
x = 156,274,918,549.88/411,759.48 - Step 6: Final answer
x = 379,529.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.